The purchase of this stamp/s will earn you 5 points valued at $0.10.
Horizontal pair.
One stamp salutes the National Aeronautics and Space Administration’s (NASA) Project Mercury, America’s first manned spaceflight program, and NASA astronaut Alan Shepard’s historic flight on May 5, 1961, aboard the spacecraft Freedom 7.
The other stamp draws attention to NASA’s unmanned MESSENGER mission, a scientific investigation of the planet Mercury. On March 18, 2011, MESSENGER will become the first spacecraft to enter into orbit around Mercury.
These two historic missions—Shepard’s Mercury flight and MESSENGER’s orbit of Mercury—frame a remarkable fifty-year period in which America has advanced space exploration through more than 1,500 manned and unmanned flights.
